Impeller Vs Propeller: What’s The Difference?
Impeller
Simply put, an impeller is a rotor that produces inherent suction as part of the pump assembly. In the case of a boat, the impeller is made up of a series of flexible rubber blades attached to a central hub. The hub rotates around a shaft in a stainless steel liner inside the pump. Cold water is pumped through the impeller to the ship’s engine to cool it under load. A pump in a Marine engine has an impeller that draws water from outside the ship into the piping system.
